AI Technical Product Manager

Vocalbeats.AI Pte Ltd; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

Vocalbeats.AI, based in Singapore, develops AI-driven applications for tens of millions of users. The role focuses on designing prompts for AI tools, aligning prompts with user goals, and collaborating with Product and Design teams.

You will analyze prompt performance, iterate based on feedback, and contribute to an internal knowledge base while growing as an AI application builder.

Qualifications

• Bachelor’s degree or above in a STEM field.
• Solid understanding of LLM fundamentals and prompt engineering principles.
• Strong product thinking to design prompts from user goals and contexts.
• Clear, structured written communication skills.
• Familiar with data analysis tools (Excel, SQL, Python).
• English proficiency CET-6 or higher for technical documentation.

Responsibilities

• Learn and deeply understand core features and usage scenarios of AI tools; design and tune prompts.
• Translate product logic and user tasks into prompt strategies; optimize for accuracy and controllability.
• Evaluate prompt effectiveness via testing, metrics, and feedback; iterate with measurable outcomes.
• Collaborate with Product, ML/Algorithm, and Design teams to align prompts with product logic.
• Summarize reusable prompt patterns and build an internal knowledge base.
• Monitor frontier LLM capabilities and compare outputs across models; adapt prompting approaches.

Skills

Prompt engineering

Product thinking

Technical writing

Data analysis

English proficiency

Learning agility

Education

Bachelor’s degree in CS / AI / EE / Math / Computational Linguistics

Tools

Excel

SQL

Python

Job description

About US

Vocalbeats.AI is a fast-growing global technology company focused on AI-driven innovation. We build intelligent, intuitive, and user-centered AI applications serving tens of millions of users worldwide. With offices in Singapore, Japan, and China, we are rapidly expanding our global presence.

Our team brings together talents from leading global universities such as Cornell, CMU, UMich, UCL, NUS, and HKU, along with professionals from top technology companies. At Vocalbeats, you will work with exceptional talents to explore the possibilities of AI and build innovative products for global users.

At Vocalbeats.AI, young talents are given broad opportunities to grow. Every valuable user insight can become a 0-to-1 product that improves people’s lives. We embrace a flat structure with direct communication and minimal hierarchy, empowering everyone to think freely, collaborate openly, and unleash their creativity. We value contribution over seniority, ensuring that great talents are recognized and rewarded.

If you are passionate about technology, ready to take on challenges, and excited to use AI to make life more convenient, intelligent, and fulfilling, join Vocalbeats.AI. Work with exceptional people, think globally, and start your journey toward a truly global career.

Official Website: https://vocalbeats.ai/

What You Will Do:

• Learn and deeply understand the core features, target users, and usage scenarios of multiple AI tools (e.g., writing, image, voice), and conduct prompt design and iterative tuning based on real-world workflows.
• Translate product logic and users’ key tasks into well-structured prompt strategies; optimize prompt structure and content to improve response accuracy, usefulness, consistency, and controllability.
• Evaluate prompt effectiveness through small-sample testing, metric monitoring, and user feedback; drive continuous iteration with measurable outcomes.
• Collaborate closely with Product, ML/Algorithm, and Design teams to align prompts with product feature logic, ensuring quality and stability across critical user journeys.
• Summarize reusable prompt patterns and best practices across scenarios; build an internal knowledge base to support fast expansion across the product portfolio.
• Track advances in frontier LLM capabilities and compare outputs across different models (e.g., GPT, Claude, ERNIE Bot, Qwen); select or adapt the most suitable prompting approaches per model and scenario.
• Gradually participate in explorations of model fine-tuning and application-layer optimization (e.g., RAG, SFT, LoRA), developing capabilities at the intersection of product understanding and model optimization.

What We Are Looking For:

• Bachelor’s degree or above in Computer Science, Artificial Intelligence, Electrical Engineering, Mathematics, Computational Linguistics, or related STEM fields.
• Solid understanding of LLM fundamentals and limitations; hands-on experience with prompt engineering or a strong, demonstrated grasp of prompt design principles.
• Strong product thinking: able to design and optimize prompts starting from user goals, product positioning, and real usage contexts.
• Clear and structured communication with strong writing skills; able to precisely control output tone, format, and structure.
• Familiar with basic data analysis tools (e.g., Excel, SQL, Python) and capable of quantifying and analyzing prompt performance.
• English proficiency at CET-6 or above; strong reading and written communication skills to work with English technical documentation and debug English prompts.
• High curiosity and learning agility; motivated to become an “AI application builder” who understands both business and models, and willing to go deep into product-facing scenarios to continuously improve LLM performance.

Why Join Us:

• Build innovative products for global users and create meaningful impacts worldwide.
• Work with a passionate team to explore emerging technologies and turn ideas into impact.
• Collaborate with talented professionals from diverse backgrounds around the world, grow through open collaboration, broaden your perspective, and gain global experience.
• Grow through real business challenges, strengthen your expertise, and unlock new career opportunities.
• Enjoy competitive compensation, comprehensive benefits, and an inspiring workplace.